Partition a hard drive mac and pc

For assistance initializing a hard drive, please see Answer ID If there is no partition and data on the drive, it will appear as Unallocated , with a black bar on top. Right-click the Unallocated space or the black bar, and click New Simple Volume. Click Next to proceed. Choose the volume size and click Next.

Formatting From a Mac

By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space. How to Partition and Format a Drive on Windows 8 or 8. Right-click on the lower-left corner of the desktop screen and click Disk Management. If there is already a partition on the drive, the bar above that drive will appear blue, which indicates the drive is already formatted and may contain data.

Click on Start and right-click Computer. Click on Manage. A window called Computer Management will open, displaying two panes. On the left-side pane, under Storage , click on Disk Management. This will load Disk Management on the right-side pane. Disk Management will proceed to display all the hard drives detected by Windows. The window may need to be maximized in order to see all the drives listed. The lower pane will display a list of available drives. Identify the drive that needs to be partitioned and formatted. It typically has a black bar indicating unallocated space.

Right-click on the unallocated space or the black bar to see a menu of available options, and click on New Simple Volume.

Add a volume to a device formatted as Mac OS Extended, MS-DOS (FAT), or ExFAT

Left-click on Next to proceed to the next screen. Please follow the steps outlined below: Now right-click on the unallocated space or the black bar to see a menu of available options, and click on New Simple Volume The Welcome to the New Simple Volume Wizard will appear. Left-click on Next to proceed to the next screen Choose the volume size and click Next. How to format a drive on macOS Open Disk Utility. Please See Answer ID Click the Format drop down Choose a new Format: Click the Done button Return to Top.

Steps for macOS To partition and format the drive with Disk Utility, follow these steps: Double left-click on the Mac HD , the internal Mac hard drive visible on the top-right corner of the desktop screen. Choose Applications from the left-side panel. While in there, open Utilities , and lastly double-click on Disk Utility. Disk Utility will now be open. In the left-side pane, choose the drive that is to be partitioned and formatted.

Typically there are two listings for each drive unless more than one partition exists on a particular drive. Choose the drive listing that is farthest to the left for the drive that will be formatted. It is usually directly above the name of the drive.

Quickly Format an External Hard Drive for Mac and Windows PC

In the example below, the one to be selected would be After selecting the appropriate drive, additional options will appear on the right-side pane. Click on Partition. In the Partition area, click on the drop-down box under Partition Layout and select 1 Partition. Double left-click on the Mac HD , the internal Mac drive. Choose Applications , then Utilities , and double-click on Disk Utilities. Please rate the helpfulness of this answer. Select your Language Language. Select an Operating System OS.

Click here for Instructions. If at any time an error occurs stating that the drive can not be dismounted or unmounted , this is not caused by an issue with the hard drive. When formatting or partitioning a drive, an error occurs stating the drive cannot be dismounted or unmounted for additional information on this particular issue. This is useful if a drive is being used under both Operating System OS to move files between the two environments.

FAT32 has several limitations, including a 4 GB per-file limit. This is a file system limitation that affects both macOS's and Window's, and the only workaround is to format the drive to exFAT. For more information about what these limitations are please see Answer ID For instructions on how to do this, please see the instructions below:.

Return to Top. You may also wish to post on our Community Forums for assistance from other users of our products who may be able to assist you with your issue. Answer ID Western Digital cannot assist in acquiring or using third-party software to format a drive as FAT There are many different applications many of them free that can accomplish this.

We recommend doing a search on Google or Bing by Microsoft for more information. Another option is to ask on our Community Forums for community assistance in finding or using a FAT32 formatting application. The FAT32 formatter software is only for older external single drive units and can only format a drive that is 1TB and below.

Quickly Format an External Hard Drive for Mac and Windows PC

It will not work on an external drive that is greater than 1TB in size. It also may not work on models released after When run, this utility can only create a single FAT32 partition for the full capacity of the hard drive. In case the answer did not answer your question, you can always visit the WD Community for help from WD users.

Return to WDC. This allows the drive to be used on both Windows and macOS. Please select the Operating System OS in which the drive is to be formatted from the list above to display the instructions. For instructions on how to do this, please see the instructions below: Connect the WD drive to the Mac computer.

Partition the drive on Windows 10

Double left-click on the Mac HD , the internal Mac hard drive visible on the top-right corner of the desktop screen. Choose Applications from the left-side panel. From the Applications folder, open Utilities , and lastly double-click on Disk Utility. Disk Utility will now be open. From the left-side pane, choose the drive that is to be re-formatted. Typically there are two listings for each drive unless more than one partition exists on a particular drive. Choose the drive listing that is farthest to the left Not indented for the drive to be formatted.

It is usually directly above the name of the drive. Erase After selecting the appropriate drive, additional option buttons will become available on the top part of the Disk Utility window. Click on Erase. The Erase dialog window will now appear. Assign the name that will be given to the drive.

Select the Format file system from the drop-down menu. For this article, we chose exFAT , see image below. Select the Scheme Partition Table Scheme from the drop-down menu. See image below. Begin by connecting the WD drive to the Mac computer. Once the drive appears on the desktop, click on Go on the top tool bar. From the drop-down menu, click on Utilities. In Utilities , select and open Disk Utility. When Disk Utility opens, select the drive that is to be partitioned and formatted from the left-side panel.

How to share an external hard drive between Mac and Windows

Typically there are two listings for each drive, unless there is more than one partition on a particular drive. Choose the drive listing that is farthest to the left for the drive that will be formatted. It is usually directly above the name of the drive, and is the drive selection that has the total size being displayed. Once selected, click on Partition on the right-side area.

In the Partition area, click under Partition Layout and select 1 Partition. Then, click on Options. To the right, insert a name for the drive, and click on Format. From the drop-down, select ExFAT. When done, click on Apply. A window will come up showing that formatting and partitioning the drive will erase all data that is on the drive.


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If there's no needed information within the drive, then click on Partition. If there is data on the drive that is needed or is not backed up, it will need to be copied to another location before proceeding.